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Strategic Complementarities in a Dynamic Model of Technology Adoption: P2P Digital Payments

Author

Listed:
  • Alvarez, Fernando
  • Argente, David
  • Lippi, Francesco
  • Méndez, Esteban
  • Van Patten, Diana

Abstract

We develop a dynamic model of technology adoption featuring strategic complementarities: the benefits of the technology increase with the number of adopters. We show that complementarities give rise to gradual adoption, multiple equilibria, multiple steady states, and suboptimal allocations. We study the planner’s problem and its implementation through adoption subsidies. We apply the theory to SINPE Movil, a peer-to-peer payment app developed by the Central Bank of Costa Rica. Using transaction-level data and user-specific networks that we construct from administrative records, we causally estimate sizable complementarities. In our calibrated model, the optimal subsidy pushes the economy to universal adoption.

Suggested Citation

  • Alvarez, Fernando & Argente, David & Lippi, Francesco & Méndez, Esteban & Van Patten, Diana, 2026. "Strategic Complementarities in a Dynamic Model of Technology Adoption: P2P Digital Payments," CEPR Discussion Papers 21211, Centre for Economic Policy Research.
  • Handle: RePEc:cpr:ceprdp:21211
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    Citations

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    Cited by:

    1. David Argente & Paula Gonzalez Alvarez & Esteban Méndez & Diana Van Patten, 2025. "Drivers of Digital Payment Adoption: Lessons from Brazil, Costa Rica, and Mexico," NBER Working Papers 34280, National Bureau of Economic Research, Inc.
    2. Riley, Emma & Shonchoy, Abu S. & Osei, Robert Darko, 2025. "Incentives and endorsement for technology adoption: Evidence from mobile banking in Ghana," Journal of Development Economics, Elsevier, vol. 176(C).
    3. repec:bdi:opques:qef_1009_26 is not listed on IDEAS
    4. Cannerozzi, Federico & Ferrari, Giorgio, 2024. "Cooperation, Correlation and Competition in Ergodic $N$-Player Games and Mean-Field Games of Singular Controls: A Case Study," Center for Mathematical Economics Working Papers 691, Center for Mathematical Economics, Bielefeld University.
    5. Nocciola, Luca & Zamora-Pérez, Alejandro, 2024. "Transactional demand for central bank digital currency," Working Paper Series 2926, European Central Bank.
    6. David Argente & Esteban Mendez & Diana Van Patten, 2026. "Cross-Border Product Adoption: Individual Imports, Migrant Networks, and Domestic Retailers," Cowles Foundation Discussion Papers 2522, Cowles Foundation for Research in Economics, Yale University.
    7. Francisco J. Buera & Nicholas Trachter, 2024. "Sectoral Development Multipliers," NBER Working Papers 32230, National Bureau of Economic Research, Inc.
    8. David Argente & Esteban Méndez-Chacón & Diana Van Patten, 2026. "Cross-Border Product Diffusion," Documentos de Trabajo 2603, Banco Central de Costa Rica.
    9. Federico Cannerozzi & Giorgio Ferrari, 2024. "Cooperation, Correlation and Competition in Ergodic N-player Games and Mean-field Games of Singular Controls: A Case Study," Papers 2404.15079, arXiv.org, revised Apr 2025.
    10. Giulio Cornelli & Jon Frost & Jonathan Warren & Clair Yang & Carolina Velásquez, 2024. "Retail fast payment systems as a catalyst for digital finance," BIS Working Papers 1228, Bank for International Settlements.
    11. Jodi Dianetti & Giorgio Ferrari & Yunzhi Hu & Hao Xing, 2026. "Latent Fragility and Clustered Withdrawals in Dynamic Banks Runs," Papers 2607.22317, arXiv.org.

    More about this item

    JEL classification:

    • E4 - Macroeconomics and Monetary Economics - - Money and Interest Rates
    • E5 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit
    • O1 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development
    • O2 - Economic Development, Innovation, Technological Change, and Growth - - Development Planning and Policy

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